What advantage rule can we state about class-2 lever

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.